Methods

Question 1

Give the method for the practical- investigating the composition of inks- simple distillation

Answer 1

1) add a small volume of ink to a flask. Connect the Faldo to the fraction of column and secure it with a stand, boss and clamp
2) attach a condenser to the top of the fractions g column connect it to a cold water tap and sink- secure it over a beaker
3) heat the flask using a Bunsen burner, reducing the flame as necessary to achieve gentle simmering
4) collect a small sample of distilled solvent the turn the Bunsen burner off

Question 2

give the method for the paper chromatography practical

Answer 2

1) draw a pencil line across the chromatogram paper, 1-2cm from the bottom
2) use a pipette or capillary tube to add small spots of each ink to the line of the paper
3) place the paper into a container with a suitable solvent in the bottom
4) allow the solvent to move through the paper,but remove the chromatogram before it reaches the top
5) allow the chromatogram to dry then measure distance travelled by each spot and by the solvent